Viktor Gyokeres comes into this game with the whole world watching.
His form since joining the Portuguese side has made many big club take note and look at what it would take to secure his services.
Having put Man City to the sword in the competition this season, he will be keen to perform against The Gunners this evening.
Mikel Arteta was asked whether his team have learnt anything from their trip to the San Siro:
I think we have made the right steps and, looking back with the way we played against Inter, which is a team that has been so dominant in their league, reached the final of the Champions League which they should have won, to play and dominate that game. Making those steps is what we have to do next. Be ruthless, be efficient in the opposition box and do what we have to do to take the three points away from here.
Mikel Arteta
Having registered their biggest win of the season on the weekend, the trip to Portugal will be a stern test of Arteta’s side.
While the bookies have them as one of the favourites to win the Champions League, facing second-placed Sporting will see just how far they can go.
The defence will need to cope with one of the in-form attacks in Europe right now.
Mikel Arteta takes his side to Portugal to face Sporting who are looking to rebuild after the departure of Ruben Amorim to Man Utd.
Sporting will be without Nuno Santos and Pedro Goncalves for the visit of The Gunners and will need to run late fitness tests on Zeno Debast and Eduardo Quaresma who have muscular issues.
Ex-Tottenham youngster Marcus Edwards could join the fearsome front three with Tincao and the prolific Gyokeres.
The former Coventry City striker has contributed to 28 goals from just 19 appearances this season, 24 goals scored himself and 4 assists.
Arsenal will be without Ben White and Takehiro Tomiyasu but apart from the pair, the treatment room is looking quite empty now.
Riccardo Calafiori, Bukayo Saka, Leandro Trossard and Declan Rice all shook off minor injuries to make the matchday squad against Nottingham Forest.
Rice spent the majority of the game on the bench as Jorginho and Gabriel Jesus were brought into the starting XI.
He is expected to start this evening along with the well-rested Gabriel Martinelli and Kai Havertz, with the only real question being whether Thomas Partey or Mikel Merino start in the midfield engine room.